/Engine/Source/Runtime/Engine/Classes/Animation/AnimInstance.h
Find a subsystem's instance-resident data. If no subsystem of the type exists this will return nullptr.
[FAnimSubsystemInstance](API\Runtime\Engine\Animation\FAnimSubsystemInstance) * FindSubsystem ( [UScriptStruct](API\Runtime\CoreUObject\UObject\UScriptStruct) * InSubsystemType )